M&S says

A wardrobe basic essential for casual days, this men’s sweatshirt is great for layering over vests or pairing with some comfy joggers or jeans. Wonderfully versatile and incredibly comfy, this cotton sweatshirt has been designed in a contemporary slim fit that gives it a modern finish.

Style

Care and Composition

35 days to return
You may return unused products within 35 days of purchase with a valid parcel summary document. Your items don't need to be in the original box or bag as long as they're securely packaged.

How to return
Simply use our returns portal to print a returns label and returns note. You will then be able to return all or part of your order at your own cost through your preferred carrier. To create a returns label, visit our returns portal select this option and follow the instructions.